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From: "Jeffrey R.Carter" <spam.jrcarter.not@spam.acm.org.not>
Newsgroups: comp.lang.ada
Subject: Re: Rosetta Code task Proper divisors fails to compile
Date: Wed, 26 Jul 2023 10:36:12 +0200
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On 2023-07-26 06:49, Kenneth Wolcott wrote:
> 
> https://rosettacode.org/wiki/Proper_divisors#Ada
> 
> gnatmake -vh ./proper_divisors.adb
> 
> generic_divisors.ads:11:08: error: (Ada 2005) cannot copy object of a limited type (RM-2005 6.5(5.5/2))
> generic_divisors.ads:11:08: error: return by reference not permitted in Ada 2005
> 
> Why does this work for the the submitter of the Rosetta Code task and not for me?

For some reason your gnatmake seems to be defaulting to -gnat05 mode. This code 
has an expression function, which is Ada 12, so try adding -gnat12 to the command.

You also should not need to put "./" in front of the file name, though I don't 
see how that would make a difference.

-- 
Jeff Carter
"I'm a lumberjack and I'm OK."
Monty Python's Flying Circus
54